Machine for making box-trays.



No. 678,52. Patented July 9. IBM. 6. B. ANDREWS.

MACHINE FOR MAKING 80X TRAYS.

v (Lpplicltirm. filed Aug. 11, 1900.) (No Model.) 5 Shoots-Shoot l.

Patented My 9, IBM.

0. B. ANDREWS.

MACHINE FOR MAKING BOX TRAYS.

(Application filed Aug. 11, 1900.) 7 (No Model.) 5 Shoots-Shoot 2.

N0. 678,52. Patented July 9. 190i. C. B. ANDREWS.

monms FOR mums BOX TRAYS.

(Application filed. Aug. 11, 1900.) (No Model.) 5 Sheets-Shani 3.

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No. 678,152. -Patented July 9, 190i.

6. B. ANDREWS.

MACHINE FOR MAKING BOX TRAYS.

(Lppllcstimi filed Aug. 11, 1900.)

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(No Model.)

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7 No. 678,I52. Patented m 9, l90l.

C. B. ANDREWS.-

MACHINE FOR MAKING BOX TRAYS.

(Appliqation he'd Aug. 11, 1900.) (No Model.) 5 Sheets-$heet 5. r

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UNITED STATE PATENT OFFICE.

CHARLES B. ANDREWS, OF LEBANON, PENNSYLVANIA, ASSIGNOR TO THE DIAMONDMATCH COMPANY, OF CHICAGO, ILLINOIS.

MACHINE FOR MAKING BOX-TRAYS.

srnornroamolv forming partof Letters meet No. 678,152, dated July 9,1901. v

Application filed August 11. 1960. Serial No. 26,615. (No model.)

.that the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, in whichv I I Figure 1is a plan view of a machineembodying my invention. Fig. 2 is a sideelevation thereof. Fig; 3,. is a vertical longitudinal sectional view ofthe same. Fig. 4 is a vertical transverse sectional view thereof. Fig. 5is a plan View of the punching-die, the punches and scoring-plates beingshown in section. Fig. 6 is a front elevationof the creasing-rolls. Fig.7 is an end elevation of the box-tray folding and receiving receptacle.Fig. 8 is a plan view of the mechanism shown in Fig. 7. Fig. 9 is avertical transverse sectional view of thesame mechanism. Fig. 10 is aperspective view of a tray such as is made by my machine; andvFig. 11 isa plan view of a strip notched and scored to form my trays.

Letters of like name and kind refer to like parts in each of thefigures.

The product of this machine, as illustrated in Figs. 10 and 11, is abox-tray formed from a blank consisting of a rectangular bottom havingalong each side a rectangular piece, which pieces when foldedperpendicularly form the sides and ends of the tray, the sides havingcorner-flaps which are cut away at their lower edges and that are gluedto the ends. The blanks for such trays are cut out of a strip ofstrawboard, heavy paper, or similar material, that is fed through themachine to be described.

The object of my invention has been to produce a machine for makingbox-trays arms which depend from the table a .m' to swing its block 'malternately into the ends my invention consists in the machine formaking box-trays hereinafter specified.

In carrying myinvention into practice I provide a frame A,consisting offront and rear legs .aand a and a and a,'respectively,which i areconnected below by cross-bars a 'and a and which support above arectangular table a Adriving-shaft Bis supported in bearings on thecross-bars a and a and has fast and loose pulleys b and b on one endthereof. Two parallel arms C and C extend rearward from the legs a, anda and support at their rear ends a spool c, on which is supported arollfD of heavy paper, strawboard, or other material, from which thebox-trays are to.be made. From the roll D the strip E passes forward andupward over two rolls F and G, which'are supported on pins secured intwig plate H is secured to brackets h and h on a plate I, that issecured to armsK and K,which are supported by the legs a and a, and aroll L is. journaled in said brackets h and h. Onv thearms C and Cissupported a glue-pan M, which is shown as stem-jacketed. A pair ofstandards m'and m rise above the glue-pan.

and across the plate H andaround the roll L,

leaving the latter in a forward direction. The block m has on it s.,upperface projections which correspond to the "locations to which itis desired to apply the glue on the strip, and such arm is positioned sothat it can be swung up and strike the strip as it extends across theplate-H. The rock-shaft of the arm m has an arm-m secured thereto, whicharm is connected by a bolt passing through a slottherein with a link m,which latter is bolted to the strap of one of a pair of eccentrics 'Nand N on the driving-shaft B. The motion of the eccentric thus causesthe arm glue and against'the strip E as it extends across the plate H.'A pair of guides 70 and it, each consisting of a vertical cylindrical.body having a horizontal arm projecting Ice therefrom and each of whichis secured to one of the brackets h or h by a bolt which passeseccentrically through such body, serves to guide the strip centrallyacross the plate II. By adjusting the guides angularly around the boltswhich secure them strips of different widths can be guided. In order tospread the glue evenly over the portions of the strip to be glued, aplate 0 is secured to the brackets h and hin such position that it issubstantially vertical to the strip, and such plate is wiped over by theglue in passing. The adjustability of the brackets h and it enables theproper presentation of the glued portions of the strip to the subsequentmechanism. After leaving the plate 0 the strip passes forward over abridge-piece P, between guides Q and Q, and under the scoring and punchiout operating mechanism other than the strip which turns them as it isdrawn through 1 them.

ing mechanism R. Such mechanism com prises a pair of vertical guides rand T, which are secured to the table by bolts passing through slots inthe guides, so that their position can be changed longitudinally of thetable. lVithin the guides a punching-head r is reciprocated by a rod rwhich is secured to a lever S, the latter being fulcrumed near the rearend of the cross-bar of the frame and having its front end forked to.embrace an eccentric s, which is secured on the driving shaft of thelower roll also carries a pinion a, l which meshes with a gear it on astud 0n the side of a frame, such gear having concen- 3 trically securedto it a ratchet-wheel a Ilever a is also pivoted on the stud of the geara, such lever carrying a spring-pressed pawl u at its upper end andhaving its lower I end pivoted to a crank-pin on an end of a link uwhose opposite endis pivoted to a 5 block it, that is bolted to a diskto on the end shaft. The punching-head carries punches r and 7- whichare shaped to remove the material from under two abutting corner-flaps,where the blanks for two trays come together on the strip, and suchpunching-head also has adjustably bolted to its sides two scoringblades7* and W, by Which the transverse scores of the adjacent ends of twoblanks are formed. Beneath the punches r and r slots 0 and r are formedin the table to permit the escape of punchings. The die-plate r issecured to the table by a bolt passing through such plate and through alongitudinal slotin the table, such construction permitting ad--justment of the plate longitudinally of the table. The die-plate isprovided with openings corresponding to the punches 1' and r and withtransverse grooves to coact with the scoring-blade. with openings forthe reception of punches of a different size from the openings firstmentioned and with transverse grooves to coact with scoring-blades tocorrespond with such second pair of punches, so that by the substitutionof another punchinghead with proper punches and scoring-blades and theturning half around or longitudinal adjustment of the die-plate a trayof a different size canbeformed. Horizontal platesr andr are bolted tothe guides r and 1' and project over the strip to prevent it from risingwith the punches. As the strip approaches the punching and scoringmechanism it passes between guides that are similar to the guides and70. After being punched and scored the strip passes through the creasingmechanism T, which consists of a pair of rolls 2? and 25, which arejournaled in brackets on the table, the

Such plate is also provided overhanging guides 20 and to.

upper roll having bearing in boxes that are movable in guides in thebrackets, such boxes being forced downward by screws in the brackets.The upper roll t has formed upon it two annular ribs 15 and 6 which aretriangular in cross-seetion, such ribs cooperating with similar groovesin the lower roll 25 and serving to form the creases or folds at thejunction of the sides and bottom of the tray. Ribs t and t similar tothe ribs 6 and 1?, are formed on the lower roll, between the groovestherein and opposite necks on the upper roll. The ribs 6 and 15 formcreases which are reversed i in position to those formed by the ribs '6and t the two creases enabling the sides of the tray when bent intoposition to stand vertical to the bottom and not have a tendency tospring outward. The rolls t and t are with* From the creasing mechanismthe strip passes between guides similar to the guides k and 7c and isengaged by the feed-rolls U 1 and U. The latter are mounted in the samemanner as the creasing-rolls and are grooved l to prevent contact of theroll with the glued f portions of the strip.

The feed-rolls-have intermeshing gears on their shafts, and the of thedrivingshat't, the latter having guides u and u for the block and theblock having Such construction permits the adjustment of the block u onthe disk 107, so that the throw of the crank-pin thereon may be adjustedto vary the movement of the feed-rolls.

A cutter-head V is reciprocable in vertical guidesv and c, which arebolted to the table, such guides being adjustable longitudinally of thetable by reason of slots in their bases, through which thesecuring-bolts pass. The cutter-head has a knife '12 secured thereto,and horizontal plates o and o are secured to the guides and extend overthe strip to prevent its rising with the knife. The cutterhead isreciprocated by a rod "0 which is secured to the lever S, such rodhaving an eye which is secured in an eyebolt on the cutterhead.

At the time the blank is severed from the strip it lies on plates :0 andm and beneath a plunger WV, whose lower end is of the size and shape ofthe tray bottom, and which plunger is reciprocable iu guides formed in aframe w, that is secured on the table. The blank is held in place onplates a," and a," by The plunger a slot through which its securing-boltpasses.

is reciprocated by rods 10 and U12, having trunnions secured to suchplunger, such rods being screwed into the straps of the eccentrics N andN on the driving-shaft. A rectangular tube X is secured to the tablebeneath the plunger W, and such tube is open at m and 00 normallyprojecting therefrom and into the path of the plunger W. On the ends ofthe rock-shafts are secured arms :0 and 00 whose opposite faces are inline with the inner front. and rear walls of the tube. The upper edgesof the arms a and 00 are preferably flush with the upper surfaces of theplates as and 00, or they maybe placed below such surfaces, so that theyoffer no obstruction to the blank while the latter is being moved intoplace along the said plates and beneath the folding-plunger. Springs mand 0& connect pins :0 and 00 on the plates 00 and :0 with pins 00 and won the table, the action of such springs being to tend to hold therockshafts so that the fingers 00 and 00 shall stand in the path of theplunger, while the arms 00 and :0 stand substantially horizontal.Rollers s0 and 00 are journaledin slotsin the front and rear walls ofthe tube on shafts 00 and 00 which are journaled in horizontal slots inthe tube-walls, such shafts being pressed inward by springs x and m",which are screwed to the tube and have their free ends bearing againstthe ends of the shaft. A downwardprojecting shoulder 50 is formed in thetube in its upper portion.

The operation of my machine is as follows: The strip E is led from theroll D around the rolls F and G, over the plate H, and around the rollL, through the punching and creasing mechanisms R and T, respectively,and to the feed-rolls U and U, by which latter it is drawnintermittently forward. As the strip pauses the glue-applying block atis raised from the glue-pan and imprints glue on the portions of thestrip where the cornerfiaps are to be secured to the ends of the tray,the pressure of such block being resisted by the plate H. As the strippasses under the plate 0 the glue is spread evenly over the desiredportions of the strip, and the latter then travels to the punching andscoring mechanism R, where the punch removes the material to produce theinclined lower edge of the corner-folds at the adjacent ends of twoblanks, and the scoring-plates form the transverse scores on theadjacent ends of two blanks. The strip is then drawn through thecreasing-rolls and the longitudinal creases of the blanks are formed.After passing through the feeding-rolls the length of a blank isprojected beyond the severing-knife o and beneath the plunger W, whereit rests on the plates as and as and above the fingers m and 00 Theknife '0 then severs the blank, and the plunger W descends upon it,forcing it between the plates at and 00, thus turning up the sides ofthe tray. The plunger then strikes the. fingers and x and depressesthem, thus turning the rock-shafts and throwing the arms m and 410against the cornerflaps and turning them against the-sides of theplunger. The farther descent of the plunger carries the tray past therollers 00 and at", which latter turn the ends of the tray against theglued corner-flaps. The plunger then carries the tray into the tube,where it fits perfectly enough to insure its retention in shape untilthe glue has set. The plunger carries the tray into the tube until theupper edge of the tray engages the shoulder 00 and the tray is thusprevented from following the plunger on its return movement Each tray asit enters the tube forces the previouslyformed ones down the tube untilthey issue singly fromits lower end, the length of the tube beingsufficient, so that the glue will have set during the passage of a traytherethrough.

Having thus described my invention, what I claim is- 1. In a machine formaking box-trays, the combination of means for applying adhesivematerial in spots to a portion only of a blank, and means for spreadingsuch adhesive material into independent stripes of uniform thicknessover a portion only of the paper, substantiallyas and for the purposedescribed.

2. In a machine for making box-trays, the combination of means forapplying adhesive material in spots to a portion only of a blank, andstationary means for spreading such adhesive material into independentstripes of uniform thickness over a portion only of the paper,substantially as and for the purpose described.

3. In a machine for making box-trays, the combination of means forapplying adhesive material in spots to a portion only of a blank, and ascraper-arranged to bear upon the strip for the purpose of spreadingsuch adhesive material into independent stripes of uniform thicknessover a portion only of the paper, substantially as and for the purposedescribed.

4. In a machine for making box-trays, a folding mechanism comprising aplunger, a flap-turning arm pivoted in the plane of a face of theplunger, the pivot thereof being near and parallel to the plane ofanother face of the plunger, and means for swinging such arm-toward theplunger in a direction opposite to the operative movement of the plunger, substantially as and for the purpose described.

5. In a machine for making box-trays, a folding mechanism comprising asupport for atray-blan k, a plunger about which the blank is adapted tobe folded, a flap-turning arm pivoted to swing in the plane of a face ofthe plunger, the pivot of such-arm being parallel to another face of theplunger, such arm being normally below the plane of said support for theblank, and means for swinging the flapturning arm toward the plunger ina direction opposite to the operative movement of the plunger,substantially as and forithe purpose described.

6. In a machine for making box-trays, a folding mechanism comprising asupport for a tray-blank, such support having an opening therein, aplunger that is adapted to enter said opening, shafts journaled in saidsupport on opposite sides of the opening, flap-turning arms on suchshafts and perpendicular thereto, said arms being normally below theblanksupporting surface, and fingers on said shafts and projecting intothe path of the plunger, whereby the flap-turning arms are turned upwardand toward the plunger as the latter de scends, substantially as and forthe purpose described.

7. In a machine for making box-trays, a folding mechanism consisting ofthe combination of a reciprocating plunger, a tube into which the traysare forced by the plunger, a pair of rock-shafts at the upper end ofsaid tube, fingers on said rock-shafts adapted to be operated by theplunger, flap-turning arms on the ends of said rock-shat ts, such armsprojecting into the path of the lower face of the plunger, and means forturning up the sides and ends of the tray, substantially as and for thepurpose described.

8. In a machine for making box-trays, a folding mechanism, comprising areciprocating plunger, a tube into which the trays are forced by theplunger, a pair of plates having edges that are in substantially thesame plane as two opposite, inner Walls of the tube, but above saidtube, a pair of rock-shafts beneath said plates, such rock-shafts havingfingers that normally project into the path of the lower face of theplunger, and having folding arms whose adjacent faces are substantiallyin line with the two of theinner walls of said tube, and means forturning up the ends of the trays, substantially as and for the purposedescribed.

In testimony that I claim the foregoing I have hereunto set my hand this14th day of June, 1900.

CHARLES B. ANDREWVS.

\Vitnesses:

DANIEL P. WITMEYER, JOHN H. BOWMAN.

